Navarro, R. R. (2006). Research-based English vocabulary program for college freshmen. UNP Research Journal.
Čikaški stil citiranja (17. izdanje)Navarro, Remedios Ralleta. "Research-based English Vocabulary Program for College Freshmen." UNP Research Journal 2006.
MLA način citiranja (9. izdanje)Navarro, Remedios Ralleta. "Research-based English Vocabulary Program for College Freshmen." UNP Research Journal, 2006.
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